Disk-sharpener.



M. QUIRY. DISK SHARPENER. 1 APPLICATION IIIZED APR.27, 1911.

Patented Oct. 3

2 SHEETS-SHEE1 Attorneys M1. :QUIRY.

DISK SHARPENER.

APPLICATION IILED 11.27, 1911.

'4 Patented Oct. 3,1911.;.

Attorneys Witnesses MURTMORE QUIRY, OF MORGANFIELD, KENTUCKY.

DISK-SHARPENER.

oaders;

Specification of Letters Patent.

Patented Oct. 3,1911.

application filed April 27, 1911. Serial No. 623,799.

To all whom it may concern:

Be it known that I, Moirrnonn QUiRY, a citizen of the United States,residing at h lorganfield, in the county of Union and State of Kentucky,have invented a new and useful Disk-Sharpener, of which the following isa specification.

The device forming the subject, matter of this application, is a machineadapted to be employed for sharpening the disks of agriculturalimplements.

It is the "object of the present invention to provide novel means foractuating the grinding rolls, and to provide novel means for adjustingthe position of the disk with respect to the grinding rolls.

With the above and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made Within the scope ofwhat is claimed without departing from the spirit of the invention.

In the .drawingsfiignre 1 shows the invention'in side elevation; Fig. 2is an end. elevation, parts being removed; Fig. 3 is a horizontalsection on the line AB of Fig. 2; Fig; 4 is an end elevation,supplemental to the showing of Fig. 2; Fig. 5 is a plan of. the guideplate; Fig. 16 is a side elevation may likewise be supplied withoutstanding of the upper grinding roll; Fig. 7 is a side elevation ofthe lower grinding roll; and Fig. 8 is an elevation of a' modified formof disk-holding means.

In carrying out the invention there is provided as a primary element, abase 1.

provided, if desired, along its sides, with reinforcing plates 2, andprovided along its forward end with a reinforcing plate 3. Secured tothe upper face of the base 1, is an arched support 4, having, as seen inFig. v3, along. its inner faces, outstanding ribs 5. adapted to formslidable mountings for an upper boxing 6, and a lower boxing 7.

Applied to the rear face of the support 4, is

a guide plate'S, seen in clearest detail in Fig. 5.. The guide plate 8is equipped with an upright slot 9, and if desired, the guide plate ears10, adapted to mate with similar ears is the lower grinding roll 12. Theforward ends of the rolls 11 and 12 protrude beyond the forward face ofthe support at, the protruding ends of the rolls 11 and 12, be ingtapered, as shown at 14:, so as to receive. properly between them, theedge of the disk which is to be sharpened. As clearly appearing in Figs.6 and 7 the grinding rolls l1 and 12 are c-ircumferentially grooved, asshown at 15; so as to engage in the slot 1) of the guide plate 8. Theshaft 16 of the lower grinding roll 12 is of sufficient length to extendrearwardly, for rotation in a basesupported bearing 17. Upon the shaft18 of theupper grinding roll 11, there is so cured a pinion 19, meshinginto a pinion 20, secured to the shaft- 16 of the lower grinding roll12. At this point it may be noted profitably, that the rolls 11 and 12are not parallel, the upper roll 11 being inclined slightly withrespectto the horizontal, so that the operative end of the'said uppergrinding roll 11 may engage properly with the inner, concaved. face ofthe disk which is to be sharpened. The shaft 16 of the lower grindingroll 12 protrudes rearwardly through the boxing 17. Upon the protrudingend of the shaft 16, there is mounted a pinion 21, meshing into another,smaller pinion 22, secured upon the shaft 23, journaled for rotation inbearings 24, carried by the base 1, to one side of the support i.

I The rear end of the shaft 23 is received for rotation in a brackct24,secured to the rear end face of the base 1. Upon the shaft 23, betweenthe bearings 24, thereare collars 25, holding the shaft 23 againstlongitudinal movement. a Thatend of the shaft 23 which protrudes beyondthe bracket 24-", may be supplied with a belt wheel 26:

The construction above described, presupposes that the shaft 23 is to bepower-driven. Frequently, it: may be desirable to operate the machine byhand, and under such circumstances, the construction may readily bealtered to effect this result, this alteration threaded into a boss28formed in-the upper portion of the guide 4, the lower end of the screw27 engaging with the upper boxing 26, whereby the upper grinding roll 11is carried. For the manipulation of the screw 27, the same may beprovided at its upper end with a hand wheel 29, or with any otherelement adapted to a like end.

Carried by the base 1, is a forwardly outstanding arm 30, preferablysustained by diverging braces 31, united at one end with the arm 30, andat their other ends, united with the base 1. Mounted for sliding movement upon the arm 30, longitudinally of the same, is a head 32, the head32 being held in adjusted positions upon the arm 30, by means of a setscrew 33 or the like, threaded into the head.

Mounted for vertical adjustment in the head 32, is an upright standard34, to the upper end of which is pivoted as shown at 35, a support 36,comprising spaced arms, united at their outer ends. Held for slidingmovement between the arms of the support 36, is a holder 37, provided inits upper face, with an outstanding stud 38, adapted to extend throughthe opening in the center of the disk which is to be sharpened. Thisstud 38 may be of any desired construction, depending upon the nature ofthe disk which is to be handled in the machine.

In order to secure an adjustment of the.

holder 37, longitudinally of the support 36, a screw 39, provided with asuitable operat-ing wheel 40, is threaded into the end of v the support36. and into the holder 37. An, adjusting bar 41 is provided, the upperend of which is pivoted, as shown at 42, to the support 36, adjacent thefree, rear end of the support. The adjusting bar 41 is supplied with alongitudinally extended slot'43, through which extends a set screw 44,or other clamping device, the set screw 44 engaging the arm 30.

In Fig. 8 of the drawings, a slight modification is shown. Referring toFig. 8, the

holder is denoted by the numeral 45, the

same having an outstanding arm 46, upon which is pivoted as shown at 47.a segment 48, having an arcuate slot 49, in which is disposed a clampingelement 50, adapted'to enter the arm 46, to hold the segment 48 invarious positions of adjustment. The segment 48 carries at its outerend, a stud 51, fidgpted to be engaged in the opening in the to besharpened, as will be readily un-- 'derstood.

The operation of the device is as follows: The stud 38 is engaged in theopening of the disk which is to be sharpened, and the standard 34 isadjusted vertically, so as to position the disk for engagement betweenthe tapered ends 14 of the grinding rolls 11 and 12. By manipulating theset screw 33, the head 32 is slid to and fro upon the arm 30, until theedge of the disk is properly positioned between the grinding rolls 11and 12. The holder 37 may likewise be adjusted longitudinally of thesupport 36, by manipulating the screw 39. The proper angle with respectto the horizontal, is secured for the disk which is to be sharpened, byloosening the adjusting screw 44, and by elevating and lowering theadjusting bar-41, until the support 36 acquires the proper angle withrespect to the horizontal.

From the foregoing, it will be seen that a variety of adjustments areprovided, whereby the disk which is to be sharpened may be properlypositioned with respect to .the grinding rolls 11 and 12.

hen the belt wheel 26 is rotated, rotation will be imparted to the shaft23, the pinion 22 of which will mesh into the pinion 21, the latterpinion imparting a rotation to the lower grinding roll 12, the pinion 20of which, meshing into the pinion 19, will impart a rotation to theupper grinding roll 11.

Referring to that form of the invention which is shown in Fig. 8, itwill be seen that by loosening the clamping member 50, the segment 48may be tilted laterally, thuspermitting the disk which .is carried bythe stud 51 to assume different angles with respect to thegrinding rolls11 and 12, whereby the said rolls may be made to engage properly,

with both the inner and outer faces of fthe disk which is to besharpened.

Having thus described the invention, what is claimed is 1. A device ofthe class described comprising a supporting arm; a standard secured tothe arm for adjustment both longitudinally of the arm and transverselyof the arm; a support pivoted to the standard; an adjustmg memberpivoted to the support; means for adj ustably uniting said member withthe arm; a disk-holder mounted for sliding movement in the support;means for maintaining the holder in adjusted position, longitudinally ofthe support; and grinding mechanism disposed in operative relation withrespect to the holder.

2. A device of the class described comprising a supporting arm; a headslidable longitudinally of the arm; means for, securing the head inadjusted posit-ion, longitudinally of the arm; a standard adjustable inthe head, transversely of the arm; a support pivoted to the standard; anadjusting member pivoted to the support and extended mo er across thearm; means for securing the ad- In testimony that I claim the foregoingjusting member in different positions to the as my own, I have heretoaflixed my sig- 1o arm, to permit :1 raising and lowering of one naturein the presence of two Witnesses.

end of the support' a disk-holder mounted w for sliding movemelit in thesupport; a screw MORTMORE QIMRY' threaded into the support and into thedisk Witnesses: holder; and grinding mechanism disposed KATHARYN DYER,

in operative relation to the disk-holder. KEN CHAPEZE.

